Paving-block construction.



S. .|0STEN.

PAVINGv BLOCK CONSTRUCTION. APPLlcmoN FILED lun: 15. 1914.

1,183,070. Patented m1119115.

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@vih/woo@ 1 Q" 2,5% 3ST SYVERT J'OSTEN, OF SATTLE, WASHINGTON.

PAVING-BLOCK coNsTRUcTroN.

Specification of Letters Patent. Patented 133716, 1916.

Application led J une15, 1914. Serial No. 845,274.

T0 all 'whom it may concern Be it known thatI, SYVERT JosTEN, a citizenof the United States, residing at Seattle, in the county of King andState of Washington, have invented certain new and useful Improvementsin Paving-Block Construction, of which the following is a specification.

This invention relates to the subject of paving blocks, and has specialreference to a novel form and combination of roadebed and gutter-formingblocks.

The primary 'object ofthe present invention is to provide a substantialand thoroughly practical road-bed construction by a nc-vel combinationand arrangement of roadbed blocks and curb and gutter blocks, each ofwhich is formed with novel interlocking and overlapping joint portions,,which because of their simplicity7 greatly facilitate the laying of theroad-bed and consequently present many advantages, chief among which istime and labor saving. i;

A further object of the invention is to provide a construction of thischaracter wherein all ofthe blocksv are laid so that the possibilityY:of one block sinking below the other is reduced to a minimum, therebyproducing a road surface that is not only firm and durable when firstlaid, but which increases in solidity Ynnder the weight of continuoustraffic.

With the above and other objects in view, the invention consists incertain novel com- 'binations and arrangements of the parts as will morefully appear as the description proceeds, the novel features thereofbeing pointed out in the appended claim.

Forea full understanding of the invention, reference is to be had to thefollowing description and accompanying drawings, in whichl Figure l is atransverse sectional view of a road-bed constructed of the blocksforming the present invention. Fig. 2 is a plan ViewY showing two rowsof blocks laid in road-bed formation.Y Fig. 3 is a perspective View ofone of the gutterfand-curb-forming blocks. Fig. 4 is aE perspective viewof one of the roadsbed blocks.

Similar reference characters designate corresponding parts in theYseveral figures of the drawings. Y

In carrying out the present invention, it is preferable to usecomposition block which comprises a base of concrete and a surface offerred.

f Regardless of the kind of material Ythat is used in the blocks,they'always have the same structural characteristics which may be bestobserved in detail in FigsQS and 4 of the drawings, wherein thereference nu- Ymeral l designates the combination gutter andcurb formingblock in itsentirety, while the rectangular road-bed block unit isdesignated by the reference numeral 2.

With special reference to the combination gutterY and curb blocks 1, itwill be observed Y that each of the same comprises a body portion whichhas formed atnone side of its upper surface a flat curb face 3, and atits opposite side is provided with a flat gutter face 4 whichmeets at anangle with an upwardly inclined gutter face terminating at the outeredge of the curb face 3. VVThe said blocks 1 are lpreferably* elongatedand formed at ene end with a projecting subi stantially invertedYVTshaped tenon 6, while the opposite end thereof is provided with acomplemental angular-end mortise 7 which is similar in configurationtol` the angular projecting tenon. rIhe vertical side 8 of the block lis varranged to form a supporting abutment for thesidewalk material,while the opposite side 9 is formed into an offset anchor flange whichprojects from the body of the block to provide a locking joint shoulder10.

The road-bed blocks 2 shown in Fig. 4 of the drawings are *of such aconstruction that they may be placed `in position to form theroad-bedfby being laid upon either of their flat faces. That 'is to say,these blocks are reversibleso that when they are used Ywith either oneof their flat faces exposed, the same interlocking and overlapping withadjoining slabs is accomplished. Each of these blocks 2 essentiallycomprises Yvertically disalined rectangular members 1l and l2, whichdisalinement produces projecting flange portions 13 and 14 on oppositesides of the block. In other words, this arrangement produces lockingjoint shoulders l5 on all sides of the block, which shoulders are all inthe same horizontal plane, though it will be obvious that the flangesprojecting from the lower member of the block will always underlieflanges on an adjacent block, while the flanges projecting from theupper member of the block will always overlap with the lower flanges ofan adjacent block. Thus, this construction provides two sides of theblock with a joint shoulder which lies beneath an overlapping jointshoulder of two adjacent blocks, and also provides the two oppositesides of the block with a joint shoulder which overlaps with jointshoulders of two adjacent blocks, thereby producing a very effectivelocking of one block with another and at the same time presenting ajoint which tends to support adjoining slabs. In connection with thelaying of these roadbed blocks 2, it is preferable to place each of thesame so that the center of the road-bed is raised high enough to producea water-shed, or each of the blocks may be made with a sufiicient curveto accomplish this result in a more pronounced manner. In either event,this construction forms an arch which rests against the interlockingcurb blocks so that any weight placed upon the center would have atendency to bear toward the sides causing the outer edges of the curbblocks to be pushed farther down into the ground, and at the same timemore firmly uniting all of the overlapping portions of the road-bedblocks.

lVith further reference to the combination curb-and-gutter blocks l, itwill be observed that the body of the same may be varied in width sothat the gutter face i is wider than that shown in Fig. 3 of thedrawings` but even with the increased width of the body of the curbblock, the anchor flange 9 and joint shoulder l0 are always preserved.The widened curb block is shown in Fig. 2, and also in Fig. l, and itwill be understood that the reason for this variation in width is solelyto adapt the blocks to the particular width of the road bed beingconstructed.

From the foregoing description, it is believed that the method ofconstructing the blocks forming the subject of the present invention,and the manner of laying the same will be readily apparent. However, inthis connection it may be said that after the road-bed has been gradedaccording to the specifications of the road, the curb blocks are put inposition so that their side faces 8 form an abutment for the sidewalkInaterial S, while the tenon ends 6 are laid so that they i'it into theangular mortise 7 of the next adjoining block. l/Vhen the curb blocksare laid in this fashion,` a continuous joint shoulder l0 is producedwhich is adapted to receive thereon one of the joint shoulders l5 of theroad-bed blocls2 so that the upper face of the latter is flush with theflat gutter face et 0f the curb block. The laying of the curb androadbed blocks may be carried on indefinitely, in each instance thelcurb blocks interlocking with each other at their ends while the sideof the same which iS provided with a `joint shoulder engages with one ofthe road-bed blocks. Each of the latter blocks or slabs have two oftheir projecting portions overlapping with locking joints of anadjoining block, and also two of their projecting portions held down bytwo adjoining blocks as previously mentioned, thus forming the completeroad-bed.

I claim:

A paving construction including a gutter section formed by a series ofinterlocking combination curb and gutter forming blocks, each comprisinga body portion provided with a flat gutter face and a flat curb face atdifferent levels, and a ila-t inclined gutter face connecting said curband gutter faces, said blocks also having at one end a projecting tenoncomprising a horizontal portion and an intermediate vertically extendingportion, and having at the opposite end an angular end mortise similarin configuration to the said projecting tenon, the edge of said bodybelow the flat gutter face being laterally off-set to form a lockingshoulder which merges with the projecting horizont-al portions of thesaid tenon, and road-bed blocks engaging with said shoulder of thecombined curb-and-gutter forming blocks.

In testimony whereof I hereunto affix .my signature in the presence oftwo witnesses.

SYVERT JOSTEN. lVitnesses:

CARL J. SMITH, THos. A. HARRISON.

Copies of thin patent may be obtained for five cents each, by addressingthe Commissioner of Patenti, Washington, D. C.

